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| author | Brian Norris <briannorris@chromium.org> | 2021-09-03 18:28:54 -0700 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2021-10-27 11:44:30 -0600 |
| commit | 204879e6990d2a57d7a6e26792cec34f97a63c0e (patch) | |
| tree | fc258ee3a5081d360105a00d22fe619ca8eb831b /drivers/hwtracing/coresight/coresight-cpu-debug.c | |
| parent | 692c9a499b286ea478f41b23a91fe3873b9e1326 (diff) | |
| download | linux-204879e6990d2a57d7a6e26792cec34f97a63c0e.tar.gz linux-204879e6990d2a57d7a6e26792cec34f97a63c0e.tar.bz2 linux-204879e6990d2a57d7a6e26792cec34f97a63c0e.zip | |
coresight: cpu-debug: Control default behavior via Kconfig
Debugfs is nice and so are module parameters, but
* debugfs doesn't take effect early (e.g., if drivers are locking up
before user space gets anywhere)
* module parameters either add a lot to the kernel command line, or
else take effect late as well (if you build =m and configure in
/etc/modprobe.d/)
So in the same spirit as these
CONFIG_PANIC_ON_OOPS (also available via cmdline or modparam)
CONFIG_INTEL_IOMMU_DEFAULT_ON (also available via cmdline)
add a new Kconfig option.
Module parameters and debugfs can still override.
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
[Fixed missing double quote in Kconfig title]
Link: https://lore.kernel.org/r/20210903182839.1.I20856983f2841b78936134dcf9cdf6ecafe632b9@changeid
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-cpu-debug.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-cpu-debug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwtracing/coresight/coresight-cpu-debug.c b/drivers/hwtracing/coresight/coresight-cpu-debug.c index 00de46565bc4..8845ec4b4402 100644 --- a/drivers/hwtracing/coresight/coresight-cpu-debug.c +++ b/drivers/hwtracing/coresight/coresight-cpu-debug.c @@ -105,7 +105,7 @@ static DEFINE_PER_CPU(struct debug_drvdata *, debug_drvdata); static int debug_count; static struct dentry *debug_debugfs_dir; -static bool debug_enable; +static bool debug_enable = IS_ENABLED(CONFIG_CORESIGHT_CPU_DEBUG_DEFAULT_ON); module_param_named(enable, debug_enable, bool, 0600); MODULE_PARM_DESC(enable, "Control to enable coresight CPU debug functionality"); |